From 9f8c3fb80740d91074b4b08a2cd4e6a729c17086 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Sun, 1 Jun 2014 05:38:58 +0200 Subject: m + m doc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- src/lib/gamma-linux-drm.c | 23 ++++++++++++----------- src/lib/gamma-x-randr.c | 22 ++++++++++++---------- src/lib/gamma-x-vidmode.c | 6 +++--- src/lib/libgamma-method.h | 36 ++++++++++++++++++++++++++++++++++++ 4 files changed, 63 insertions(+), 24 deletions(-) (limited to 'src') diff --git a/src/lib/gamma-linux-drm.c b/src/lib/gamma-linux-drm.c index 36ba442..2644da8 100644 --- a/src/lib/gamma-linux-drm.c +++ b/src/lib/gamma-linux-drm.c @@ -88,29 +88,30 @@ typedef struct libgamma_drm_card_data */ void libgamma_linux_drm_method_capabilities(libgamma_method_capabilities_t* restrict this) { - this->crtc_information = LIBGAMMA_CRTC_INFO_EDID - | LIBGAMMA_CRTC_INFO_WIDTH_MM - | LIBGAMMA_CRTC_INFO_HEIGHT_MM - | LIBGAMMA_CRTC_INFO_WIDTH_MM_EDID - | LIBGAMMA_CRTC_INFO_HEIGHT_MM_EDID - | LIBGAMMA_CRTC_INFO_GAMMA_SIZE - | LIBGAMMA_CRTC_INFO_GAMMA_DEPTH + /* Support for all information except gamma ramp support. */ + this->crtc_information = LIBGAMMA_CRTC_INFO_MACRO_EDID + | LIBGAMMA_CRTC_INFO_MACRO_VIEWPORT + | LIBGAMMA_CRTC_INFO_MACRO_RAMP | LIBGAMMA_CRTC_INFO_SUBPIXEL_ORDER | LIBGAMMA_CRTC_INFO_ACTIVE - | LIBGAMMA_CRTC_INFO_CONNECTOR_NAME - | LIBGAMMA_CRTC_INFO_CONNECTOR_TYPE - | LIBGAMMA_CRTC_INFO_GAMMA; + | LIBGAMMA_CRTC_INFO_MACRO_CONNECTOR; + /* DRM supports multiple partitions and CRTC:s but not sites. */ this->default_site_known = 1; this->multiple_sites = 0; this->multiple_partitions = 1; this->multiple_crtcs = 1; + /* Partitions are graphics cards in DRM. */ this->partitions_are_graphics_cards = 1; + /* Linux does not have system restore capabilities. */ this->site_restore = 0; this->partition_restore = 0; this->crtc_restore = 0; + /* Gamma ramp sizes are identical but not fixed. */ this->identical_gamma_sizes = 1; this->fixed_gamma_size = 0; + /* Gamma ramp depths are fixed. */ this->fixed_gamma_depth = 1; + /* DRM is a real non-faked adjustment method */ this->real = 1; this->fake = 0; } @@ -139,7 +140,7 @@ int libgamma_linux_drm_site_initialise(libgamma_site_state_t* restrict this, return LIBGAMMA_NO_SUCH_SITE; /* Count the number of available graphics cards by - * stat:ing there existence in an API filesystem. */ + stat:ing there existence in an API filesystem. */ this->partitions_available = 0; for (;;) { diff --git a/src/lib/gamma-x-randr.c b/src/lib/gamma-x-randr.c index ad07e97..f907cdd 100644 --- a/src/lib/gamma-x-randr.c +++ b/src/lib/gamma-x-randr.c @@ -132,33 +132,35 @@ static int translate_error(int error_code, int default_error, int return_errno) void libgamma_x_randr_method_capabilities(libgamma_method_capabilities_t* restrict this) { char* display = getenv("DISPLAY"); - this->crtc_information = LIBGAMMA_CRTC_INFO_EDID - | LIBGAMMA_CRTC_INFO_WIDTH_MM - | LIBGAMMA_CRTC_INFO_HEIGHT_MM - | LIBGAMMA_CRTC_INFO_WIDTH_MM_EDID - | LIBGAMMA_CRTC_INFO_HEIGHT_MM_EDID - | LIBGAMMA_CRTC_INFO_GAMMA_SIZE - | LIBGAMMA_CRTC_INFO_GAMMA_DEPTH + /* Support for all information except active status and gamma ramp support. */ + this->crtc_information = LIBGAMMA_CRTC_INFO_MACRO_EDID + | LIBGAMMA_CRTC_INFO_MACRO_VIEWPORT + | LIBGAMMA_CRTC_INFO_MACRO_RAMP | LIBGAMMA_CRTC_INFO_SUBPIXEL_ORDER - | LIBGAMMA_CRTC_INFO_CONNECTOR_NAME - | LIBGAMMA_CRTC_INFO_CONNECTOR_TYPE - | LIBGAMMA_CRTC_INFO_GAMMA; + | LIBGAMMA_CRTC_INFO_MACRO_CONNECTOR; + /* X RandR supports multiple sites, partitions and CRTC:s. */ this->default_site_known = (display && *display) ? 1 : 0; this->multiple_sites = 1; this->multiple_partitions = 1; this->multiple_crtcs = 1; + /* Partitions are screens and not graphics cards in X. */ this->partitions_are_graphics_cards = 0; + /* X does not have system restore capabilities. */ this->site_restore = 0; this->partition_restore = 0; this->crtc_restore = 0; + /* Gamma ramp sizes are identical but not fixed. */ this->identical_gamma_sizes = 1; this->fixed_gamma_size = 0; + /* Gamma ramp depths are fixed. */ this->fixed_gamma_depth = 1; + /* X RandR is a real non-faked adjustment method */ this->real = 1; this->fake = 0; } +/* xcb violates the rule to never return struct:s. */ # pragma GCC diagnostic push # pragma GCC diagnostic ignored "-Waggregate-return" diff --git a/src/lib/gamma-x-vidmode.c b/src/lib/gamma-x-vidmode.c index 170d3b4..654995c 100644 --- a/src/lib/gamma-x-vidmode.c +++ b/src/lib/gamma-x-vidmode.c @@ -38,11 +38,11 @@ void libgamma_x_vidmode_method_capabilities(libgamma_method_capabilities_t* restrict this) { char* restrict display = getenv("DISPLAY"); - /* Gamma ramps size anddepth can be queried. */ + /* Gamma ramps size and depth can be queried. */ this->crtc_information = LIBGAMMA_CRTC_INFO_GAMMA_SIZE | LIBGAMMA_CRTC_INFO_GAMMA_DEPTH; - /* X VidMode supports multiple sits and partitions but not CRTC:s. */ - this->default_site_known = (display && *display); + /* X VidMode supports multiple sites and partitions but not CRTC:s. */ + this->default_site_known = (display && *display) ? 1 : 0; this->multiple_sites = 1; this->multiple_partitions = 1; this->multiple_crtcs = 0; diff --git a/src/lib/libgamma-method.h b/src/lib/libgamma-method.h index 8496631..df95f87 100644 --- a/src/lib/libgamma-method.h +++ b/src/lib/libgamma-method.h @@ -542,6 +542,42 @@ typedef enum libgamma_subpixel_order */ #define LIBGAMMA_CRTC_INFO_COUNT 13 +/** + * Macro for all `libgamma_crtc_information_t` fields + * that can be filled if the adjustment method have + * support for reading the monitors' Extended Display + * Information Data. + */ +#define LIBGAMMA_CRTC_INFO_MACRO_EDID ( LIBGAMMA_CRTC_INFO_EDID \ + | LIBGAMMA_CRTC_INFO_WIDTH_MM_EDID \ + | LIBGAMMA_CRTC_INFO_HEIGHT_MM_EDID \ + | LIBGAMMA_CRTC_INFO_GAMMA ) + +/** + * Macro for both `libgamma_crtc_information_t` fields + * that can specify the size of the monitors viewport + * is provided by the adjustment method without this + * library having to parse the monitor's Extended Display + * Information Data. + */ +#define LIBGAMMA_CRTC_INFO_MACRO_VIEWPORT (LIBGAMMA_CRTC_INFO_WIDTH_MM | LIBGAMMA_CRTC_INFO_HEIGHT_MM) + +/** + * Macro for the `libgamma_crtc_information_t` fields + * that specifies the CRTC's gamma ramp sizes and gamma + * ramp depth. + */ +#define LIBGAMMA_CRTC_INFO_MACRO_RAMP (LIBGAMMA_CRTC_INFO_GAMMA_SIZE | LIBGAMMA_CRTC_INFO_GAMMA_DEPTH) + +/** + * Macro for the `libgamma_crtc_information_t` fields + * that specifies the CRTC's connector type and the + * partition unique name of the connector. + */ +#define LIBGAMMA_CRTC_INFO_MACRO_CONNECTOR ( LIBGAMMA_CRTC_INFO_CONNECTOR_NAME \ + | LIBGAMMA_CRTC_INFO_CONNECTOR_TYPE ) + + /** * Cathode ray tube controller information data structure. -- cgit v1.2.3-70-g09d2